This study was conducted at the INERA/MULUNGU research center during the B cropping season. The experimental design adopted was the split-plot with two factors under study. These were mineral fertilization with NPK and DAP and seedling density. The results of the analysis of variance showed that the two factors studied had no effect on almost all the growth parameters of the peanut crop. Thus, this study suggests that a much more in-depth study on the subject taking into account the different ecological zones of the province, by making fractionations of the different fertilizers used in this study, to determine the optimal doses giving the best yields.